public class GradStudent extends Student { 
	private String thesisTitle;
	private String supervisor;
	public void setThesisTitle(String t) {
		thesisTitle = t;
	}
	public void setSuperviros(String s) {
		supervisor = s;
	}
	public void showDetails() {
		super.showDetails();
		System.out.println("thesisTitle: "+thesisTitle);
		System.out.println("supervisor: "+supervisor);		
	}
}
